# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
@Desc:
@File:
@Author:
"""
import sys
import unittest
from paddleslim.nas import SANAS, RLNAS
from paddleslim.nas.early_stop import MedianStop
from static_case import StaticCase

sys.path.append("../")

steps = 5
epochs = 5


class TestMedianStop(StaticCase):
    """
    Test class paddleslim.nas.early_stop.MedianStop
    """

    def test_median_stop1(self):
        """
        class paddleslim.nas.early_stop.MedianStop(strategy, start_epoch, mode)
        mode='minimize'
        :return:
        """
        # config = [('ResNetBlockSpace', {'block_mask': [0]})]
        config = [("ResNetBlockSpace2", {"block_mask": [0]})]
        port = 8773
        rlnas = RLNAS(
            key="lstm", configs=config, server_addr=("", port), is_sync=False, is_server=True, save_controller=False
        )
        earlystop = MedianStop(rlnas, 2, mode="minimize")
        avg_loss = 1.0
        for step in range(steps):
            status = earlystop.get_status(step, avg_loss, epochs)
            self.assertTrue(status, "GOOD")

        avg_loss = 0.5
        for step in range(steps):
            status = earlystop.get_status(step, avg_loss, epochs)
            if step < 2:
                self.assertTrue(status, "GOOD")
            else:
                self.assertTrue(status, "BAD")


if __name__ == "__main__":
    unittest.main()
